Neural control: neuron, nervous system, nerve impulse
Top questions
See all →- Given below are two statements :Statement I : The cerebral hemispheres are connected by nerve tract known as corpus callosum.Statement II : The brain stem consists of the medulla oblongata, pons and cerebrum.In the light of the above statements, choo… Answer: 4. Statement I is correct but Statement II is incorrect. Statement I is correct. The corpus callosum is the nerve tract joining the... 1
- Match List I with List II :List I:A. PonsB. HypothalamusC. MedullaD. CerebellumList II:I. Provides additional space for Neurons, regulates posture and balance.II. Controls respiration and gastric secretions.III. Connects different regions of the brai… Answer: 3. A-III, B-IV, C-II, D-I Pons - fibre tracts that connect different regions of the brain (A-III). Hypothalamus - contains neurosecr... 1
- The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear etc. are : Answer: 2. Limbic system & hypothalamus Key idea: The limbic system together with the hypothalamus controls emotions and behaviour. It regul... 1
- Match List I with List II with respect to human eye.List I: A. Fovea; B. Iris; C. Blind spot; D. ScleraList II: I. Visible coloured portion of eye that regulates diameter of pupil.; II. External layer of eye formed of dense connective tissue.; III. P… Answer: 2. A-III, B-I, C-IV, D-II Key idea: Match each eye part with its function. Fovea: point of greatest visual acuity (III). Iris: visib... 1
- Select the incorrect statement regarding synapses : Answer: 1. Impulse transmission across a chemical synapse is always faster than that across an electrical synapse. Key idea: Electrical syna... 1
- Match the following columns and select the correct option.Column - I | Column - II(a) Organ of Corti | (i) Connects middle ear and pharynx(b) Cochlea | (ii) Coiled part of the labyrinth(c) Eustachian tube | (iii) Attached to the oval window(d) Stapes… Answer: 3. (a) (iv), (b) (ii), (c) (i), (d) (iii) Organ of Corti sits on the basilar membrane: (a) - (iv). Cochlea is the coiled part of the... 1